[PATCH v2 2/2] riscv: dts: sophgo: add Milk-V Duo ethernet DTB

From: Hiago De Franco

Date: Wed Nov 04 2026 - 10:00:19 EST


Add a DTB that applies the shared cv18xx-eth.dtbo overlay to the Milk-V
Duo (CV1800B) base DTB. This enables gmac0 and the internal PHY MDIO mux
on boards with the Ethernet IO board, matching the existing Milk-V Duo
256M DTB.

Signed-off-by: Hiago De Franco <hfranco@xxxxxxxxxxxx>
---
arch/riscv/boot/dts/sophgo/Makefile | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/riscv/boot/dts/sophgo/Makefile b/arch/riscv/boot/dts/sophgo/Makefile
index 440acd0aa55a..3c9f3530526e 100644
--- a/arch/riscv/boot/dts/sophgo/Makefile
+++ b/arch/riscv/boot/dts/sophgo/Makefile
@@ -1,5 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
dtb-$(CONFIG_ARCH_SOPHGO) += cv1800b-milkv-duo.dtb
+cv1800b-milkv-duo-eth-dtbs := cv1800b-milkv-duo.dtb cv18xx-eth.dtbo
+dtb-$(CONFIG_ARCH_SOPHGO) += cv1800b-milkv-duo-eth.dtb
dtb-$(CONFIG_ARCH_SOPHGO) += cv1812h-huashan-pi.dtb
dtb-$(CONFIG_ARCH_SOPHGO) += cv18xx-eth.dtbo
dtb-$(CONFIG_ARCH_SOPHGO) += sg2000-milkv-duo-s.dtb

--
2.53.0